With hundreds of thousands of mobile apps available today, your app needs to capture a user's interest within minutes--and sometimes even sooner. This practical guide teaches you the core principles for designing effective mobile user interfaces, and helps you get started by providing more than 40 proven UI patterns for mobile websites and applications.You'll find patterns for using gesture and sound, patterns that apply to touch and scroll-and-select devices, and some patterns that have different implementations to fit different interaction methods. Learn which patterns apply to the situation or problem you're trying to solve. In several cases, you'll discover more than one choice. Rather than attempt to repackage a web UI for a small screen, you need to take a completely different approach. "Designing Mobile Interfaces" shows you how.